Reliability analysis of 3D lidar bridge evaluation

Wanqiu Liu; Shen-En Chen

doi:10.1117/12.881134

18 April 2011 Reliability analysis of 3D lidar bridge evaluation

Wanqiu Liu, Shen-En Chen

Proceedings Volume 7983, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011; 79831N (2011) https://doi.org/10.1117/12.881134
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

Abstract

Terrestrial 3D LiDAR scanner has been suggested as a remote sensing technique for existing and newly constructed bridges. Using high resolution laser, 3D LiDAR can populate a surficial area with millions of position data points. Bridge problems can benefit from LiDAR scan and current studies have found potential application including: bridge clearance, static deflection measurement and damage detection. The technique is especially useful when accurate measurement of bridge geometry cannot be achieved by traditional survey technique, especially when site topography is prohibitive. However, resolution is still one of the main reasons that limit the application of LiDAR technology for advance bridge monitoring. This paper discusses the reliability issues of such technique as well as the LiDAR based bridge monitoring methodologies. Several experimental results are presented to establish the sensitivities for different assessments.

Citation Download Citation

Wanqiu Liu and Shen-En Chen "Reliability analysis of 3D lidar bridge evaluation", Proc. SPIE 7983, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011, 79831N (18 April 2011); https://doi.org/10.1117/12.881134

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